Although this species was discovered in 1926, scientists did not begin to study it until 70 years later, in 1996. Much still remains to be learned about the Banff springs snail, which made history in 1997 as the first mollusc to be designated/ listed as threatened by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC).

Although the largest snails are about the size of a kernel of corn, the majority are about half that size. It is easiest to spot them when they cling to algae, bacteria, sticks or rocks at the water's surface, where they must go to breathe. The snails have dark eyes and a shell that spirals to the left. (Most snails have shells that spiral to the right ).

A Glimpse of the Precarious Existence of the Sublimatable Organism

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